Could anyone give me an indication as to whether these two covers are valuable or not. If valuable what price range might one be looking at? (There are no letters in these two items.)

I am not a proclaimed collector of stamps ...but over the last 20-30 years I have come across many items and have just stashed them away because I was informed that they could be valuable. I have several more items that were mailed from battleships during WWII,there are ones with senators signatures and there are many that deal with airmail,etc. Quite a few are hand canceled.

I am most interested in ascertaining the possible value of these items.

I would appreciate any help with the two items above. I may post more later.